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  3. FSystemInterrogator

FSystemInterrogator

Unreal Engine C++ API Reference > Runtime > MovieSceneTracks > EntitySystem > Interrogation

Inheritance Hierarchy

References

   
Module MovieSceneTracks
Header /Engine/Source/Runtime/MovieSceneTracks/Public/EntitySystem/Interrogation/MovieSceneInterrogationLinker.h
Include #include "EntitySystem/Interrogation/MovieSceneInterrogationLinker.h"

Syntax

class FSystemInterrogator :  
    private FGCObject,  
    private UE::MovieScene::IInterrogationExtension

Variables

  Type Name Description
Protected variable FInterrogationChannels Channels Object <-> Channel tracker
Protected variable FMovieSceneEvaluationFieldEntitySet EntitiesScratch Scratch buffer used for generating entities for interrogation times
Protected variable FMovieSceneEntityComponentField EntityComponentField Entity component field containing all the entity owners relevant at specific times
Protected variable TUniquePtr< FSystemInterrogatorEntityTracker > EntityTracker Tracker class that is used for keeping track of imported entities
Protected variable TSparseArray< FExtraMetaData > ExtraMetaData  
Protected variable TSharedPtr< FInitialValueCache > InitialValueCache Initial value cache
Protected variable TObjectPtr< UMovieSceneEntitySystemLinker > Linker The linker we own

Constructors

  Type Name Description
Public function    

Destructors

  Type Name Description
Public function    

Functions

  Type Name Description
Public function int32 Add a new time to interrogate this linker at, in the time-base of the imported tracks.
Public function FInterrogationChannel

AllocateChannel ( UObject* Object,
const FMovieScenePropertyBinding& PropertyBinding
)

 Allocate a new interrogation channel that relates to a specific object
Public function Const FMovieSceneEntityID

FindEntityFromOwner ( FInterrogationKey InterrogationKey,
UObject* Owner,
uint32 EntityID
)

 Find an entity given the entity's owner.
Public function Static EEntitySystemCategory Gets the custom system category for systems who should be excluded from interrogation linkers
Public function Static EEntitySystemCategory Gets the custom system category for interrogation-specific systems
Public function Const TArrayView< const FInterrogationParams > Retrieve the current interrogations
Public function Const UMovieSceneEntitySystemLinker * Access the underlying linker used for interrogation.
Public function Const int32 Retrieve the number of channels allocated
Public function FInterrogationChannel Import any transform tracks that relate to the specified scene component, or it's AActor if it is the root
Public function void

ImportTrack ( UMovieSceneTrack* Track,
const FGuid& ObjectBindingID,
FInterrogationChannel InChannel
)

 Import a track into this linker.
Public function void Import a track into this linker.
Public function void

ImportTracks ( TArrayView< UMovieSceneTrack*const > Tracks,
const FGuid& ObjectBindingID,
FInterrogationChannel InChannel
)

 Import multiple tracks into this linker. See ImporTrack above.
Public function void Import multiple tracks into this linker. See ImporTrack above.
Public function FInterrogationChannel Import the entire transform hierarchy for the specified component, including all attached parents and tracks relating to them.
Public function Const void

QueryLocalSpaceTransforms ( const TBitArray<>& ChannelsToQuery,
TSparseArray< TArray< FIntermediate3DTransform >>& OutTransformsByChannel
)

 Query a specific set of channels for their local space transforms as defined by set bits within ChannelsToQuery
Public function Const void Query all local space transforms, even including channels that do not have any variable track data
Public function Const void Query local space transforms
Public function Const void Query local space transforms
Public function Const void

QueryPropertyValues ( const TPropertyComponents< PropertyTraits >& InPropertyComponents,
FInterrogationChannel InChannel,
TArray< typename PropertyTraits::StorageType >& OutValues
)

 Query the computed value of an animated property.
Public function Const void

QueryPropertyValues ( const TPropertyComponents< PropertyTraits >& InPropertyComponents,
TArray< typename PropertyTraits::StorageType >& OutValues
)

 Query the computed value of an animated property.
Public function Const void

QueryWorldSpaceTransforms ( TSparseArray< TArray< FTransform >>& OutTransformsByChannel
)

 Query all world space transforms, even including channels that do not have any variable track data
Public function Const void

QueryWorldSpaceTransforms ( USceneComponent* SceneComponent,
TArray< FTransform >& OutTransforms
)

 Query world space transforms for a component
Public function Const void

QueryWorldSpaceTransforms ( const TBitArray<>& ChannelsToQuery,
TSparseArray< TArray< FTransform >>& OutTransformsByChannel
)

 Query a specific set of channels for their world space transforms as defined by set bits within ChannelsToQuery
Public function Const void

QueryWorldSpaceTransforms ( FInterrogationChannel InChannel,
TArray< FTransform >& OutTransforms
)

 Query world space transforms for a channel
Public function void

Reset ()

 Reset this linker back to its original state
Public function void

TrackImportedEntities ( bool bInTrackImportedEntities
)

 Indicate that consumers of this class require a reverse-lookup table for imported entities to be maintained such that the various FindEntity functions can be called.
Public function void

Update ()

 Flush this interrogator by running all the systems relevant to the current data and populating the interrogation outputs.

Overridden from IInterrogationExtension

  Type Name Description
Public function Virtual Const const FSparseInterrogationChannelInfo &  

Classes

  Type Name Description
Protected struct FExtraMetaData Array of shared extra metadata on entities  

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